In this work the elastic behaviour of metallic powder compacts is studied. Cylindrical specimens with different levels of density have been submitted to uniaxial compression tests with loading and unloading cycles. The ...

Powder Metallurgical Industry is very interested in spreading its applications and improve the quality of the PM products. Therefore, a detailed knowledge of their processes, in order to control them, is necessary. Many ...

The knowledge of the flow behavior of metallic all
oys subjected to hot forming
operations is of particular interest for designers
and engineers in the practice of industrial forming
processes simulations (i.e. rolling ...

The results of monotonic and cyclic uniaxial compression tests, in which the deviatoric
component of the stress is predominant, carried out on green and recrystallized iron compacts with different levels of density are ...

The automotive industry has increased significantly the use of advanced high strength
steels (AHSS) in many structural components of vehicles, with the aim to reduce weight and also increase
safety. The high resistance ...

In the Metalworking Industry the design and the control of the processes have been traditionally based on the experience and, sometimes, considered as an art. The application of numerical methods reduces the costs of the ...

In this work, a Plasticity model for granular materials, based on the Drucker-Prager/CAP model, is applied to represent the behaviour of the metallic powders during their cold die compaction. The elastic deformation has ...

A study has been carried out on the grain size distribution of cylindrical compacts
obtained by consolidation of iron powder severely deformed by mechanical milling. Consolidation has been performed in two consecutive ...

The excellent combination of high mechanical strength, high elongation and strain
hardening of Advanced High Strength Steels (AHSS) has allowed their increasing use in the
automobile industry to reduce vehicle weight and ...